Resistance of chickpea genotypes to Spodoptera frugiperda (Lepidoptera: Noctuidae)
Abstract
The fall armyworm, Spodoptera frugiperda (J. E. Smith, 1797) (Lepidoptera: Noctuidae), is a globally distributed polyphagous pest that threatens several crops, including chickpea. This study aimed to assess the antixenosis and antibiosis to S. frugiperda in chickpea genotypes (BRS Aleppo, BRS Cícero, BRS Kalifa, BRS Toro, Flip 10328C, Flip 10329C, Flip 10370C, Flip 10379C, and Flip 10161C). Antixenosis was evaluated using free-choice and no-choice tests with third-instar larvae, and antibiosis through biological and nutritional parameters. BRS Kalifa and Flip 10379C exhibited antixenosis to S. frugiperda, possibly associated with trichome density. The genotypes also influenced the larval and pupal duration, pupal weight, and total immature development, which were the most affected biological parameters. The larvae fed on Flip 10329C, Flip 10161C, Flip 10379C, BRS Cícero, BRS Toro, BRS Aleppo, and BRS Kalifa exhibited a longer larval duration, whereas the pupae from BRS Cícero, BRS Aleppo, BRS Kalifa, BRS Toro, and Flip 10161C showed a longer pupal duration. The larvae fed on BRS Kalifa, BRS Aleppo, BRS Toro, BRS Cícero, and Flip 10379C had the longest immature development time. Overall, Flip 10379C and BRS Aleppo negatively affected the development of S. frugiperda.
KEYWORDS: Cicer arietinum, plant resistance to insects, fall armyworm.
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